"Wall Street Braces for Potential 'Black Monday' Déjà Vu on 36th Anniversary"

TL;DR
As the anniversary of "Black Monday" approaches, some on Wall Street are speculating that a similar market crash could occur, with social media seeing a proliferation of viral charts comparing recent trading action to 1987. However, experts point out that there are significant differences between the markets then and now, including strengthened circuit-breaker mechanisms and a more concentrated market. While some warn of a potential crash, others argue that the similarities are not enough to conclude that a crash-like event is likely.
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